An estuary is ________
A) a coral reef ecosystem that has experienced bleaching because of changes in water temperature
B) a person who compiles and analyzes statistics to determine the maximum allowable catch for fish and other seafood
C) a landform created from the silt that moves down a river and into the ocean
D) a biologically rich area where a river flows into the ocean, where fresh- and saltwater mix
D
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What was the purpose of the Colorado River Compact?
A) mitigate against drought by limiting the amount of groundwater that can be extracted from the Colorado River basin B) allocate equitably the water between the seven states of the Colorado River basin C) design a multi-year plan for instream use of the Colorado River resources D) establish "first in time, first in rights" (prior appropriation) in regards to use of the Colorado River. E) construction of a hydroelectric power station larger than China's Three Gorges to serve the states of the Colorado River Basin
Which of the following minerals can act as cement for clastic sedimentary rocks?
a. Calcite (CaCO3) b. Graphite (C) c. Dolomite (CaMg[CO3]2) d. Silica (SiO2) e. both a and d
_______ ________ are naturally occurring materials which people can use and ultimately the diversity and abundance of these materials play a significant role in development
Fill in the blank(s) with correct word
Which of the following is not correct regarding geothermal energy?
A) It is the product of exogenic processes. B) It's in use in Iceland, Japan, and California. C) Used geothermal water can be returned to aquifers via injection wells. D) It can be used to produce both heat and electricity.